If the coffee cup had been sitting open for several hours , it is
possible that there could have been bacterial contamination.
Eventhough you did not have any vomiting
point , you may still develop these symptoms.
But , I don't think it will be very serious. Drink plenty of water,
stay on clear liquid diet
like clear jello, broth etc. till you feel
For diarrhea , you might want to take a couple of pepto
tablets three or four times a day if needed.
Hope you feel better soon.